#18179E#18179E

#18179E is a dark, highly saturated blue. Relative luminance 0.033; OKLCH L 34.1% C 0.202 H 269.0°. Best body text is #FFFFFF at 12.69:1 contrast (WCAG AA passes).

Color values

HEX	#18179E
RGB	rgb(24, 23, 158)
HSL	hsl(240, 75%, 35%)
HSV	hsv(240, 85%, 62%)
CMYK	cmyk(84.8%, 85.4%, 0%, 38%)
CIE-LAB	lab(21.11, 48.13, -69.83)
CIE-LCH	lch(21.11, 84.81, 304.58°)
OKLab	oklab(34.11% -0.0035 -0.2021)
OKLCH	oklch(34.11% 0.202 269)
XYZ	xyz(6.8525, 3.2748, 32.6121)
Luminance	0.0328 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18179E #9D9E17

analogous

#175A9E #18179E #5B179E

triadic

#18179E #9E1817 #179E18

tetradic

#18179E #9E175A #9D9E17 #179E5B

square

#18179E #9E175A #9D9E17 #179E5B

split-complementary

#18179E #9E5B17 #5A9E17

monochromatic

#080733 #100F69 #18179E #201FD3 #4C4BE5

Accessibility & contrast

On white

12.69

#18179E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#18179E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18179E

12.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18179E	#FFFFFF	#000000	##FFFFFF
##18179E	1.00	12.69	1.66	12.69
#FFFFFF	12.69	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003AA2

Deuteranopia (green-blind)

#002B9C

Tritanopia (blue-blind)

#00445D

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #18179e;
/* rgb */ color: rgb(24, 23, 158);
/* oklch */ color: oklch(34.1% 0.202 269.0);

Tailwind

colors: {
  custom: {
    50: '#7259bc',
    500: '#18179e',
    950: '#000000',
  },
}

SCSS

$custom: #18179e;
$custom-light: #7259bc;
$custom-dark: #000000;

JSON

{
  "hex": "#18179e",
  "rgb": {
    "r": 24,
    "g": 23,
    "b": 158
  },
  "hsl": {
    "h": 240.444,
    "s": 74.586,
    "l": 35.49
  },
  "oklch": {
    "l": 0.34106,
    "c": 0.20216,
    "h": 269
  },
  "luminance": 0.03276
}

Semantic roles & 50–950 ramp

primary

#18179E

secondary

#C5C64A

accent

#F137F0

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #18179E

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →